package main

import (
	"fmt"
	"strings"
)

func main() {
	var (
		username string
	)
	fmt.Print("请输输入您的英文名字")
	fmt.Scan(&username)

	if strings.HasPrefix(username, "a") || strings.HasPrefix(username, "A") {
		fmt.Println(true)
	} else {
		fmt.Println(false)
	}

	fmt.Printf("")
}
